Motorcycle engine oil dipstick



FIG. 1 is a perspective view of an ornamental design of a motorcycle engine oil dipstick according to our invention, all other side views being identical;

FIG. 2 is a top view thereof;

FIG. 3 is a side view thereof, the front and rear views being identical thereto; and,

FIG. 4 is a bottom view thereof. 

The ornamental design for a motorcycle engine oil dipstick, as shown and described. 